What a story. Be friendly to your neighbors, otherwise they might turn off your TV!

When I was living in Berlin, the entire apartment complex had a WhatsApp group and people would (of course it's Berlin) party a lot. People would ask each other to turn down the volume, which worked for the most part - at least for severe partying. Best messages were like "you've been partying all night, it's 2pm, I need some silence to have a meeting.

Back then I was dreaming of some shared application, people could put on their phone or laptop and then the collective could decide or at least hint through that software that the volume was up too high.